Oracle-Managed Instance Maintenance
In addition to the management tasks that you perform, Oracle manages the patching and updating of some components of an Oracle Blockchain Platform instance and regularly completes other maintenance tasks to keep the instance healthy.
| Activity | Typical Frequency | Customer Action | Impact on Oracle Blockchain Platform Service |
|---|---|---|---|
| Addressing disk space issues | When the provisioned storage capacity of the instance approaches 90% usage | For Enterprise instances, scale up the storage capacity. For more information, see Scale Your Instance. For Standard instances, additional disk capacity cannot be added. | The system might become unusable if storage space is low. |
| Applying operating system patches | Monthly | None | Typically, there is no impact. Very rarely, a VM might need to be restarted. |
| Applying hotfixes and upgrades to Oracle Blockchain Platform | Varies; typically once every 3-6 months | Check the health metrics of the instance after the maintenance activity. | Some components might be restarted. Patches are applied one VM at a time. If an instance has redundant peers, other peers can process blockchain requests while patches are applied. |
| Renewing identity certificates | Annually | If you use the Hyperledger Fabric SDK, download the renewed admin certificates from the service console and then associate them with your client application. | Some components might be restarted during the certificate renewal process. |
| Renewing load balancer certificates | Annually | None | Typically, no impact. If the instance wildcard certificate and its intermediate or root certificates changed, the wildcard certificate might need to be associated with your application. |
| Renewing Raft certificates | Annually | None | Some components might be restarted during the certificate renewal process. |
| Restarting virtual machines (VMs) | Varies | Check the health metrics of the instance after the maintenance activity. | All components are restarted. VMs are normally restarted one at a time. If an instance has redundant peers and orderers, other peers can process the blockchain requests when VMs are being restarted. |
If your instance of Oracle Blockchain Platform is stopped, Oracle might start the instance, complete the maintenance activity, and then stop the instance. Typically this maintenance could last 1-2 hours. You might notice a slight increase in the billing because the instance will be turned on during the maintenance window, and it will be billed according to regular billing for that shape instance for the duration of time it is turned on.